80790680

素因数分解:

$2^3\times 5^1\times {\mathrm{2019767}}^1$

素因数の和:2019778

約数の個数: 16

約数和(自身を含む): 181779120

約数和(自身を除く): 100988440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2019767, 4039534, 8079068, 10098835, 16158136, 20197670, 40395340, 80790680]

約数ペア:

[(1, 80790680), (2, 40395340), (4, 20197670), (5, 16158136), (8, 10098835), (10, 8079068), (20, 4039534), (40, 2019767)]